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Full text of "Apple Service Manual: PowerBook 150"

Service Source 



PowerBook 150 



■► 




Service Source 



Basics 



PowerBook 150 



<** 



m 



Basics 



General Information - 1 



i 



General Information 

The PowerBook 150, shown at left, is an all-in-one 
notebook computer that features a 68030 processor 
running at 33 MHz and a 9.5 inch diagonal backlit FSTN 
display. The PowerBook 150 includes a 120 MB internal 
hard drive and supports up to six external SCSI devices 
through a SCSI port. 

The PowerBook 150 internal hard drive is based on IDE 
(Intelligent Device Electronics) technology, commonly used 
in DOS-compatible systems. The IDE drive functions the 
same as a typical SCSI hard drive; it does not affect SCSI ID 
selections or SCSI termination schemes. 




— ^a^ 



Figure: PowerBook 150 



<** 



m 



Basics 



Rear Panel - 2 



Rear Panel 




® 



® 



Power 


Modem 


SCSI 


Printer/Modem 


Reset 


Power 


Adapter 




(HDI-30) 




Button 


Button 



<** 




Service Source 



Specifications 



PowerBook 150 



<** 



M 



Specifications Introduction - 1 

Introduction 

You can also find specifications information for this product in the 
Spec Database, which you can access in one of three ways: 

— Launch it directly by double-clicking the Apple Spec Database 
runtime alias at the top level of the Main Service Source CD. 

— Select "Apple Spec Database" from the Service Source drop- 
down main menu. 

— Click the Acrobat toolbar icon for the database, which is near 
the right end of the toolbar with the letters "SP." 



<** 



[■gjT Specifications Processor - 2 

Processor 



CPU Motorola 68030 microprocessor 

33 MHz 



Addressing 32-bit internal registers 

32-bit address bus 
32-bit data bus 



<** 



Fff 



Specifications 



Memory - 3 



Memory 



RAM 



4 MB, expandable to 40 MB 



ROM 



1 MB 



PRAM 



256 bytes of parameter memory 



VRAM 



256K of static video display memory 



Clock/Calendar 



CMOS custom chip 



<** 



Fff 



Specifications Disk Storage - 4 



Disk Storage 

Floppy Drive 19 mm high, 1 .4 MB Apple SuperDrive 

Hard Drive 2.5 in., 120 MB IDE hard drive 



<** 



[■gjT Specifications I/O Interfaces - 5 

I/O Interfaces 

SCSI HDI-30 SCSI port with 1 .5 MB/sec. transfer rate 

Supports up to six external SCSI devices 
Connect SCSI device to computer with HDI-30 SCSI system cable 

Serial One RS-422 serial port; mini DIN-8 connector 



<** 



M 



Specifications 



I/O Devices - 6 



I/O Devices 



Keyboard 



Built-in standard Apple keyboard 

63 keys domestic; 64 keys ISO 

18 mm vertical pitch; 18.63 mm horizontal pitch 

Two-level tilt adjustment 



Trackball 



30 mm diameter, dual button 
Apple Desktop Bus (ADB) interface 



<** 



Itf 



Specifications 



Sound and Video - 7 



Sound and Video 



Video Display 



9.5 in. diagonal screen 

Flat-panel, film-compensated supertwist nematic (FSTN) liquid 

crystal display 
640 lines by 480 pixels 



Sound Generator 



Apple sound chip provides 8-bit sound capable of driving stereo 
headphones or other stereo equipment through the sound jack 



<** 



Itf 



Specifications 



Electrical - 8 



Electrical 



Main Battery 



Nickel cadmium (NiCad) battery 

Provides 2-4 hours of usage before recharging 



Power Adapter 



1 1 0-240 VAC line voltage 

50-60 Hz 

US, Japanese, United Kingdom, Australian, and European versions 



<** 



Itf 



Specifications Physical - 9 



Physical 



Dimensions Height: 2.3 in. (5.8 cm) 

Width: 1 1.3 in. (28.7 cm) 
Depth: 9.3 in. (23.6 cm) 

Weight 5.5 lb. (2.5 kg) with battery 



<** 



Fff 



Specifications Environmental- 10 



Environmental 



Operating 50-95° F (10-35° C) 
Temperature 

Storage 1 4-1 40° F (-1 to 60° C) 
Temperature 

Relative Humidity 20-80% noncondensing 

Operating Altitude 0-10,000 ft. (0-3048 m) 

Shipping Altitude 0-1 5,000 ft. (0-4722 m) 



<** 




Service Source 



Troubleshooting 



PowerBook 150 



«■► 



Troubleshooting General/ - 1 

General 

The Symptom Charts included in this chapter will help you 
diagnose specific symptoms related to your product. Because cures 
are listed on the charts in the order of most likely solution, try 
the first cure first. Verify whether or not the product continues to 
exhibit the symptom. If the symptom persists, try the next cure. 
(Note: If you have replaced a module, reinstall the original module 
before you proceed to the next cure.) 

If you are not sure what the problem is, or if the Symptom Charts 
do not resolve the problem, refer to the Flowchart for the product 
family. 

For additional assistance, contact Apple Technical Support. 



«■► 



Troubleshooting Power Manager Reset/ - 2 



Power Manager Reset 



Reset the power manager if 

• The battery and power adapter are proven good, but the 
computer will not power on. 

• The computer will not reset after a system crash. 

To reset the power manager in a PowerBook 1 50, 

• Remove the AC adapter and the battery. 

• Using a paper clip, hold down the reset button on the back of the 
computer for 5-1 seconds. 

• Reconnect the AC adapter and briefly push the reset button 
again. You should hear a small pop from the speaker. 

• Turn on the computer. 

• If the computer powers on, reinstall the battery. If the 
computer does not start, it may need servicing. 

<<■► 



\~fifl Troubleshooting 



Symptom Charts/Startup - 3 



RAM failure occurs 
(eight-tone error 
chord sequence 
sounds after startup 
chord) 

Hardware failure 
occurs (four-tone 
error chord sequence 
sounds after startup 
chord) 



Symptom Charts 

Startup 

1 Replace RAM expansion card. 

2 Replace logic board. 



Disconnect hard drive data cable and reboot system. If 
startup sequence is normal, replace hard drive. 
Disconnect floppy drive cable and reboot system. If startup 
sequence is normal, replace floppy drive. 
Replace logic board. 



^IMI^ 



Troubleshooting 



Symptom Charts/Startup (Continued) - 4 



Screen displays 
checkerboard pattern; 
no startup chime 



Startup (Continued) 

1 Reseat RAM expansion card. 

2 Replace RAM expansion card. 

3 Reseat display cable. 



«■► 



Troubleshooting 



Symptom Charts/Power - 5 



Power 



Screen is blank; 
computer doesn't 
respond 



1 Press reset switch. 

2 Connect power adapter and reboot computer in 3-4 minutes. 

3 Try known-good, charged main battery. 

4 Check all interconnect board and logic board connections. 

5 Reset the power manager. 

6 Replace keyboard. 

7 Replace interconnect board. 

8 Replace logic board. 



After removing main 
battery, some 
Control Panel 
settings are different 



1 Replace interconnect board. 

2 Replace logic board. 



^IMI^ 



Troubleshooting 



Symptom Charts/Power (Continued) - 6 



Power (Continued) 



Power adapter is 
plugged in, but 
battery DA does not 
indicate charger is 
connected 



1 Check battery charger connection. 

2 Try known-good, charged main battery. 

3 Try known-good power adapter. 

4 Replace logic board. 



Low-power warning 
appears 



1 Recharge battery or attach power adapter. 

2 Verify that peripherals are low-power. 

3 Reduce use of power-consuming devices or connect power 
adapter. 

4 Try known-good, charged main battery. 

5 Try known-good power adapter. 

6 Replace logic board. 



^IMI^ 



Troubleshooting 



Symptom Charts/Power (Continued) - 7 



Power (Continued) 



Computer runs when 
plugged in to wall 
outlet but not on 
battery power; 
battery voltage is 
within tolerance 



1 Reseat battery to make sure battery is mating with contacts 
on logic board. 

2 Replace fuse on logic board. 

3 Replace logic board. 

4 Return computer to Apple. 



«■► 



\~fifl Troubleshooting 



Symptom Charts/Video - 8 



Video 



Row or partial row of 
pixels never comes 
on or is always on 



1 Replace display cable. 

2 Replace display. 

3 Replace interconnect board. 



Thin white line is 
always on at middle of 
screen 



Thin white line is normal for FSTN screens. 



^IMI^ 



Troubleshooting Symptom Charts/Video (Continued) - 9 

Video (Continued) 

Display is very light 1 Adjust screen contrast, 

or totally white 2 Adjust screen brightness. 

3 Check display cable, inverter board, interconnect board, and 
logic board connections. 

4 Replace inverter board. 

5 Replace interconnect board. 

6 Replace display cable. 

7 Replace display. 

8 Replace logic board. 



^IMI^ 



Troubleshooting 



Symptom Charts/ Video (Continued) - 1 



Video (Continued) 



No display, but 
computer appears to 
operate correctly 



1 Adjust screen contrast. 

2 Check display cable, inverter board, interconnect board, and 
logic board connections. 

3 Replace inverter board. 

4 Replace interconnect board. 

5 Replace power cable. 

6 Replace display cable. 

7 Replace display. 

8 Replace logic board. 



Rainbow colors 
visible from extreme 
viewing angles 



Such colors are normal for FSTN screens. 



^IMI^ 



\~fifl Troubleshooting 



Symptom Charts/ Video (Continued) - 1 1 



Video (Continued) 



Image is not uniform 



Irregularity in images is normal for FSTN screens. Adjust 
contrast and brightness to diminish effect. 



Display stopped 
working or dimmed 
but is fine now 



If temperature is under 5 or over 40 degrees centigrade, this 
reaction is normal for FSTN screens. 



Backlight doesn't 
operate 



1 Check cables. 

2 Check display cable, inverter board, interconnect board, and 
logic board connections. 

3 Replace inverter board. 

4 Replace inverter cable. 

5 Replace interconnect board. 

6 Replace display. 

7 Replace logic board. 



^IMI^ 



Troubleshooting Symptom Charts/ Video (Continued) - 1 2 

Video (Continued) 

Screen goes blank 1 Press any key to wake computer from system sleep. 

2 Check display cable connection. 

Pixel is always white Replace display, 
or always black 



«■► 



Troubleshooting 



Symptom Charts/Floppy Drive - 1 3 



Floppy Drive 



Audio and video 
present, but internal 
drive does not operate 



1 Try known-good floppy disk. 

2 Check floppy drive cable connection. 

3 Replace floppy drive cable. 

4 Replace floppy drive. 

5 Replace logic board. 



Disk ejects while 
booting; display 
shows Mac icon with 
blinking X 



1 Try known-good system disk. 

2 Verify that trackball or mouse button is not stuck. 

3 Check floppy drive cable connection. 

4 Replace floppy drive cable. 

5 Replace floppy drive. 

6 Replace logic board. 



^IMI^ 



■^j Troubleshooting Symptom Charts/Floppy Drive (Continued) - 14 

Floppy Drive (Continued) 

Disk does not eject 1 Switch off system and hold mouse button down while you 

switch system on. 

2 Insert opened paper clip into hole beside drive. 

3 Check floppy drive cable connection. 

4 Replace floppy drive cable. 

5 Replace floppy drive. 

6 Replace logic board. 

Disk initialization 1 Try known-good floppy disk, 

fails 2 Install inverter shield. 

3 Check floppy drive cable connection. 

4 Replace floppy drive cable. 

5 Replace floppy drive. 



^IMI^ 



Troubleshooting 



Symptom Charts/Floppy Drive (Continued) - 1 5 



Floppy Drive (Continued) 



Read/write/copy 


1 


Try known-good floppy disk. 


error 


2 


Install inverter shield. 




3 


Check floppy drive cable connection 




4 


Replace floppy drive cable. 




5 


Replace floppy drive. 



«■► 



Troubleshooting 



Symptom Charts/Hard Drive - 1 6 



Hard Drive 



Internal hard drive 
does not operate 



1 Make sure power adapter is connected. 

2 Check hard drive cable connection. 

3 Replace hard drive cable. 

4 Replace hard drive. 

5 Replace logic board. 



«■► 



\~fifl Troubleshooting 



Symptom Charts/Peripherals - 17 



Peripherals 



After connecting 
external SCSI device, 
computer doesn't boot 



1 
2 
3 



5 
6 

7 



Switch on external SCSI device before starting computer. 

Check cable connections. 

Verify that standard Apple terminator terminates end of SCSI 

chain. 

Verify that SCSI select switch setting on external device is 

unique. 

Verify operation of internal hard drive. 

Try known-good external SCSI device. 

Replace logic board. 



Cursor does not move 
when using trackball 



1 Press reset switch. 

2 Check interconnect board and logic board connections. 

3 Replace interconnect board. 

4 Replace logic board. 



^IMI^ 



\~fifl Troubleshooting 



Symptom Charts/Peripherals (Continued) - 1 8 



Cursor intermittently 
does not move or 
moves erratically 



Peripherals (Continued) 

1 Clean ball and rollers of trackball. 

2 Replace trackball. 

3 Replace keyboard. 

4 Replace interconnect board. 

5 Replace logic board. 



Cursor moves, but 
clicking trackball 
button has no effect 



1 Check interconnect board and logic board connections. 

2 Replace trackball. 

3 Replace keyboard. 

4 Replace interconnect board. 

5 Replace logic board. 



^IMI^ 



Troubleshooting 



Symptom Charts/Peripherals (Continued) - 1 9 



Peripherals (Continued) 



No response to any 
key on keyboard 



1 Reset power manager. 

2 Check connections of keyboard to interconnect board. 

3 Replace keyboard. 

4 Replace interconnect board. 

5 Replace logic board. 



Known-good 
ImageWriter, 
ImageWriter II, or 
LQ does not print 



1 Verify that System is current. 

2 Verify that Chooser and Control Panel settings are correct. 

3 Check cables. 

4 Replace printer interface cable. 

5 Try known-good printer. 

6 Replace logic board. 



^IMI^ 



Troubleshooting 



Symptom Charts/Peripherals (Continued) - 20 



Peripherals (Continued) 



Known-good 
LaserWriter does not 
print 



1 Verify that System is current. 

2 Verify that Chooser and Control Panel settings are correct. 

3 Check cables. 

4 Replace printer interface cable. 

5 Try known-good printer. If printer works, troubleshoot 
network. Refer to Networking and Communications manual. 

6 Replace logic board. 



Device connected to 
external modem port 
doesn't work 



1 Verify that External Modem is selected in CDEV. 

2 Verify that System is current. 

3 Verify third-party setup software. 

4 Check cables. 

5 Attach device to known-good computer. 

6 Replace logic board. 



^IMI^ 



Troubleshooting 



Symptom Charts/Peripherals (Continued) - 21 



Peripherals (Continued) 



I/O devices are 


1 


unrecognized or 


2 


garbage is 


3 


transmitted or 


4 


received 






5 




6 



Verify that System is current. 

Check cables. 

Verify that SCSI device has standard Apple terminator. 

Verify that SCSI select switch setting on external device is 

unique. 

Attach device to known-good computer. 

Replace logic board. 



«■► 



Troubleshooting 



Symptom Charts/Internal Modem - 22 



Internal Modem 



Internal modem 
options do not appear 
in CDEV 



1 Remove and reseat modem card. 

2 Verify that System is current. 

3 Replace modem card. 

4 Replace logic board. 



Modem does not 
respond properly to 
AT command set 
instructions 



1 



2 
3 
4 
5 



Verify that baud rate and data format settings of 

communications application are compatible with internal 

modem and remote modem. 

Check phone cord connection and operation. 

Remove and reseat modem card. 

Verify that System is current. 

Replace modem card. 



^IMI^ 



\~fifl Troubleshooting 



Symptom Charts/Internal Modem (Continued) - 23 



Internal Modem (Continued) 



Strange mix of 
characters appears 
on screen 



1 Verify that baud rate and data format settings of 
communications application are compatible with internal 
modem and remote modem. 

2 Check phone cord connection and operation. 

3 Remove and reseat modem card. 

4 Verify that System is current. 

5 Replace modem card. 

6 Replace logic board. 



Modem interferes 
with system sound 



1 Remove and reseat modem card. 

2 Replace modem card. 

3 Replace interconnect board. 

4 Replace logic board. 



^IMI^ 



Troubleshooting 



Symptom Charts/Internal Modem (Continued) - 24 



Internal Modem (Continued) 



Modem does not 
respond to incoming 
call 



1 If computer is in sleep mode, verify that Wake On Ring 
option in CDEV is selected. 

2 Check phone cord connection and operation. 

3 Replace modem card. 

4 Replace logic board. 



Modem has no sound 
output 



1 Verify that Control Panel volume setting is above 0. 

2 Replace modem card. 

3 Replace interconnect board. 

4 Replace logic board. 



Modem connects but 
does not communicate 
with remote modem 



1 Verify that remote modem needs error correction (error 
correction is internal modem default). 

2 If remote modem does not need error correction, type AT 
&Q0 to disable error correction. 



«■► 



\~fifl Troubleshooting 



Symptom Charts/Miscellaneous - 25 



Miscellaneous 

Screen goes blank and Adjust sleep delays in Control Panel or connect power adapter, 
computer shuts down 
every few minutes 

Application seems to Connect power adapter. 

run slower after few 

seconds 

Hard drive is slow to Adjust sleep delays in Control Panel or connect power adapter, 
respond, or screen 
goes blank too often 



^IMI^ 



Troubleshooting Symptom Charts/Miscellaneous (Continued) - 26 

Miscellaneous (Continued) 

No sound from 1 Verify that volume setting in Control Panel is 1 or above, 

speaker 2 Check connection of interconnect board to logic board. 

3 Replace interconnect board. 

4 Replace logic board. 



«■► 




Service Source 



Take Apart 



PowerBook 150 



<** 



\~fi?\ Take Apart 



Main Battery - 1 




Main Battery 



Main Battery 

Before you begin, 
disconnect the power 
adapter. 

Note: This procedure also 
covers removal of the main 
battery door. 

Important: Before removing 
the main battery, use the 
Macintosh Shut Down 
command. Otherwise, all 
RAM contents will be lost. 

A. Warning: The main 
battery is a NiCad battery 
that contains toxic 



\~fi?\ Take Apart 



Main Battery - 2 




materials. Review battery 
handling and disposal 
instructions in Bulletins/ 
Safety. 

1 Slide open the battery 
door. 

2 Using the battery door as 
a handle, pull out the 
main battery. 



^IMI^ 



Take Apart 



Main Battery - 3 




Note: Complete the next 
steps only if you are 
replacing the battery or 
battery door. 

3 Slide the battery door 
completely open. 

4 Pull the end tab until it 
releases, and remove 
the door from the 
battery. 



<<■► 



Take Apart 



Top Case - 4 




Top Case 



Before you begin, remove 
the main battery. 

Caution: The PowerBook 
1 50 contains CMOS devices 
that are very susceptible to 
ESD damage. Review the ESD 
precautions in Bulletins/ 
Safety. 



^IMI^ 



\~fi?\ Take Apart 



Top Case - 5 




1 Using a T-8 torx driver, 
remove the five torx 
screws from the bottom 
case. 



^IMI^ 



Take Apart 



Top Case - 6 



Interconnect 
Cable 




2 Lift up the top case and 
disconnect the 
interconnect cable. 

3 Lift off the top case and 
unhook the two tab 
fasteners from the front 
of the bottom case. 

Replacement Caution: When 
connecting the interconnect 
cable, fold the cable as 
shown. If it is not folded 
correctly, the cable could 
short. 



Tab Fastener 



<<■► 



\~fi?\ Take Apart 



Hard Drive - 7 



Hard Drive 

Before you begin, remove 
the following: 

• Main battery 

• Top case 




Hard Drive 



Caution: The PowerBook 
1 50 contains CMOS devices 
that are very susceptible to 
ESD damage. Review the ESD 
precautions in Bulletins/ 
Safety. 



^IMI^ 



\~fi?\ Take Apart 



Hard Drive - 8 




Caution: The hard drive 
cable is fragile. Handle it 
with care. 

1 Disconnect the hard 
drive cable from the 
logic board. 



^IMI^ 



\~fi?\ Take Apart 



Hard Drive - 9 




Hard Drive 
Cable 



Carefully fold back the 
hard drive cable. 

Using a T-8 torx driver, 
remove the three hard 
drive mounting screws. 

Lift the hard drive out of 
the bottom case. 



^IMI^ 



Take Apart 



Hard Drive - 10 




Note: Complete the 
following steps if you are 
replacing the hard drive, 
hard drive cable, or hard 
drive bracket. 

5 Using a small flat-blade 
screwdriver, carefully 
pry the hard drive cable 
from the hard drive. 



^IMI^ 



\~fi?\ Take Apart 



Hard Drive - 1 1 




6 Turn over the hard 
drive. 

7 Using a #1 Phillips 
screwdriver, remove 
the four screws securing 
the hard drive bracket. 

8 Remove the bracket from 
the hard drive. 

Replacement Note: For 

information on returning 
drives, cables, and carriers 
to Apple, refer to the Hard 
Drives manual. 



<<■► 



\~fi?\ Take Apart 



Floppy Drive - 1 2 




._ Floppy Drive 



Floppy Drive 

Before you begin, remove 
the following: 

• Main battery 

• Top case 

• Modem card (if present) 

Caution: The PowerBook 
1 50 contains CMOS devices 
that are very susceptible to 
ESD damage. Review the ESD 
precautions in Bulletins/ 
Safety. 



^IMI^ 



Take Apart 



Floppy Drive - 1 3 



Floppy Drive 




Hard Drive 
Cable 



Caution: The hard drive 
cable is fragile and should be 
handled with care. 

1 Disconnect the hard 
drive cable from the 
logic board. 

2 Carefully fold back the 
cable from the floppy 
drive. 



^IMI^ 



\~fi?\ Take Apart 



Floppy Drive - 1 4 




Caution: The floppy drive 
cable is fragile and should be 
handled with care. 

3 Lift the locking tab on 
the floppy drive 
connector and disconnect 
the floppy drive cable 
from the logic board. 



^IMI^ 



\~fi?\ Take Apart 



Floppy Drive - 1 5 




Using a T-8 torx driver, 
remove the four floppy 
drive mounting screws. 

Lift the floppy drive out 
of the bottom case. 



^IMI^ 



\~fi?\ Take Apart 



Floppy Drive - 1 6 




Note: Complete the 
following steps if you are 
replacing the floppy drive, 
floppy drive cable, or floppy 
drive brackets. 

6 Using a small flat-blade 
screwdriver, push out 
the locking tab and 
remove the floppy drive 
cable from the drive. 



^IMI^ 



\~fi?\ Take Apart 



Floppy Drive - 1 7 




Using a #0 Phillips 
screwdriver, remove 
the four screws securing 
the left and right floppy 
drive brackets. 

Remove the brackets 
from the floppy drive. 



<<■► 



\~fi?\ Take Apart 



Trackball Assembly - 1 8 






Trackball 




Assembly 




Before you begin, remove 




the following: 




• Main battery 


Trackball 


• Top case 


Assembly 


Caution: The PowerBook 




1 50 contains CMOS devices 




that are very susceptible to 




ESD damage. Review the ESD 




precautions in Bulletins/ 




Safety. 



^IMI^ 



\~fi?\ Take Apart 



Trackball Assembly - 1 9 




Caution: The trackball cable 
is fragile and should be 
handled with care. 

1 Pull out the locking tab 
on the trackball 
connector and disconnect 
the trackball cable. 



^IMI^ 



\~fi?\ Take Apart 



Trackball Assembly - 20 




Using a T-8 torx driver, 
remove the two mounting 
screws and lift the 
trackball assembly out 
of the top case. 



<<■► 



\~ffi Take Apart 



Keyboard - 21 



Keyboard 



Keyboard 




Before you begin, remove 
the following: 

• Main battery 

• Top case 

• Trackball assembly 

Caution: The PowerBook 
1 50 contains CMOS devices 
that are very susceptible to 
ESD damage. Review the ESD 
precautions in Bulletins/ 
Safety. 



^IMI^ 



I "2^1 Take Apart 



Keyboard - 22 




Caution: The keyboard 
ribbon cables are fragile and 
should be handled with care. 

1 Lift up the locking tabs 
on the two keyboard 
connectors and 
disconnect the keyboard 
cables. 



^IMI^ 



\~ffi Take Apart 



Keyboard - 23 



I 




Using a T-8 torx driver, 
remove the seven 
mounting screws and 
lift the keyboard out of 
the top case. 



<<■► 



\~fi?\ Take Apart 



Inverter Board - 24 



Inverter Board 

Before you begin, remove 
the following: 

• Main battery 

• Top case 



r 



Inverter Board 



Caution: The PowerBook 
1 50 contains CMOS devices 
that are very susceptible to 
ESD damage. Review the ESD 
precautions in Bulletins/ 
Safety. 



^IMI^ 



Take Apart 



Inverter Board - 25 



Inverter 
Shield 




1 Remove the two 
mounting screws that 
secure the inverter 
board to the bottom case. 

2 Note: Do not remove the 
inverter shield from the 
inverter board. 

Pull the inverter board 
and attached shield 
straight up and off the 
connector on the 
interconnect board. 

3 Disconnect the inverter 
cable. 

Replacement Note: Inverter 
shields are available from 



^IMI^ 



\~fi?\ Take Apart 



Inverter Board - 26 



Brightness Pot 



Contrast Pot 




Inverter 
Board 



the Service Price Pages. If 
you are replacing a defective 
inverter that has an 
inverter shield installed, 
order both the inverter 
board and the inverter 
shield. Do not reuse the 
original inverter shield. 

Replacement Note: Be sure 
to align the brightness and 
contrast pots on the inverter 
board with the plastic 
actuators on the top case. It 
is easiest to align the pots 
and actuators if you set both 
to their extreme outer 
positions. 



Actuator 



Actuator 



<<■► 



\~fi?\ Take Apart 




Interconnect Board 



Interconnect Board - 27 



Interconnect Board 

Before you begin, remove 
the following: 

• Main battery 

• Top case 

• Inverter board 

Caution: The PowerBook 
1 50 contains CMOS devices 
that are very susceptible to 
ESD damage. Review the ESD 
precautions in Bulletins/ 
Safety. 



^IMI^ 



Take Apart 



Interconnect Board - 28 




A. Warning: The 
interconnect board contains 
hazardous materials. 
Return bad interconnect 
boards to Apple for proper 
disposal. 

1 Caution: The keyboard 
and display ribbon 
cables are fragile. 
Handle these cables with 
care. 

Lift up the locking tabs 
on the two keyboard 
connectors and 
disconnect the keyboard 
cables. 



^IMI^ 



Take Apart 



Interconnect Board - 29 




J2 Connector 



2 Note: The display cable 
will not come entirely 
out of the connector until 
you remove the 
interconnect board from 
the top case. 

Pull out the locking tab 
on connector J 2 and ease 
the display cable out of 
the connector as far as 
the cable will go. 

Replacement Note: Connect 
the display cable before 
replacing the interconnect 
board. 



^IMI^ 



\~fi?\ Take Apart 



Interconnect Board - 30 




Using a T-8 torx driver, 
remove the two mounting 
screws and lift the 
interconnect board from 
the top case. 



<<■► 



\~fi?\ Take Apart 



Actuators - 3 1 



Actuators 

Before you begin, remove 
the following: 

• Main battery 

• Top case 

• Inverter board 



Actuators 



Caution: The PowerBook 
1 50 contains CMOS devices 
that are very susceptible to 
ESD damage. Review the ESD 
precautions in Bulletins/ 
Safety. 



^IMI^ 



\~fi?\ Take Apart 



Actuators - 32 




Pull up the contrast 
actuator, rotate it 
toward the display, and 
remove the actuator 
from the top case. 

Repeat for the 
brightness actuator. 



<<■► 



\~fi?\ Take Apart 



Elevation Feet - 33 



Elevation Feet 



Elevation Foot 



Before you begin, remove 
the following: 

• Main battery 

• Top case 

Caution: The PowerBook 
1 50 contains CMOS devices 
that are very susceptible to 
ESD damage. Review the ESD 
precautions in Bulletins/ 
Safety. 



Elevation Foot 



^IMI^ 



Take Apart 



Elevation Feet - 34 




Using a T-8 torx driver, 
remove the torx screw 
and washer and the 
spring clip from the 
inside of the elevation 
foot. 

Pull off the elevation 
foot. 



<<■► 



\~ffi Take Apart 




Fuse 



Fuse - 35 

Fuse 

Before you begin, remove 
the following: 

• Main battery 

• Top case 

Caution: The PowerBook 
1 50 contains CMOS devices 
that are very susceptible to 
ESD damage. Review the ESD 
precautions in Bulletins/ 
Safety. 



^IMI^ 



Take Apart 



Fuse - 36 




1 Using a small flat-blade 
screwdriver, pry up 
and remove the fuse. 



<<■► 



\~ffi Take Apart 



Logic Board - 37 




Logic Board 



Logic Board 

Before you begin, remove 
the following: 

• Main battery 

• Top case 

• RAM expansion card (if 
present) 

• Modem board (if present) 

Caution: The PowerBook 
1 50 contains CMOS devices 
that are very susceptible to 
ESD damage. Review the ESD 
precautions in Bulletins/ 
Safety. 



^IMI^ 



Take Apart 



Logic Board - 38 



Hard Drive 
Cable 




Floppy 
■— Drive 
Cable 



Caution: The hard drive and 
floppy drive cables are 
fragile. Handle them with 
care. 

1 Disconnect the hard 
drive cable from the 
logic board. 

2 Lift up the locking tabs 
and disconnect the floppy 
drive cable from the 
logic board. 



^IMI^ 



\~ffi Take Apart 



Logic Board - 39 



Hex Nut Screw 



Torx 
Screw- 1 



Logic Board 




3 Remove the three hex 
nut screws and three 
torx screws that secure 
the logic board to the 
bottom case. 

4 Lift the logic board out of 
the bottom case. 

Replacement Note: Replace 
the tall hex nut screw in the 
corner of the logic board 
nearest the RAM card 
connector. 



<<■► 



\~fi?\ Take Apart 



Display Bezel - 40 




Display Bezel 



^sa 



Display Bezel 

Before you begin, remove 
the main battery. 

Caution: The PowerBook 
1 50 contains CMOS devices 
that are very susceptible to 
ESD damage. Review the ESD 
precautions in Bulletins/ 
Safety. 



^IMI^ 



\~fi?\ Take Apart 



Display Bezel - 41 




1 Remove the two plastic 
plugs. 

2 Using a T-8 torx driver, 
remove the two bezel 
mounting screws from 
the display. 



^IMI^ 



\~fi?\ Take Apart 



Display Bezel - 42 



\ — Display Bezel 




Pull the display bezel 
down and away from the 
display and release the 
bezel from the mounting 
tabs at the top and sides 
of the display. 

Lift the bezel off the 
display. 



<<■► 



\~fi?\ Take Apart 



Clutches/Display Housing - 43 



Clutch Assembly 




Clutches/Display 
Housing 

Before you begin, remove 
the following: 

• Main battery 

• Display bezel 

Caution: The PowerBook 
1 50 contains CMOS devices 
that are very susceptible to 
ESD damage. Review the ESD 
precautions in Bulletins/ 
Safety. 



^IMI^ 



\~fi?\ Take Apart 



Clutches/Display Housing - 44 




Cover the keyboard with 
a clean cloth or sheet of 
paper. 

Using a T-8 torx driver, 
remove the four display 
mounting screws. 

Remove the display 
from the housing and 
EMI shield. 

Place the display face- 
down on the keyboard. 



^IMI^ 



\~fi?\ Take Apart 



Clutches/Display Housing - 45 




5 Pull off the three clutch 
covers. 

6 Using a T-8 torx driver, 
remove the three 
mounting screws from 
the left and right 
clutches. 

7 Remove the left and right 
clutches from the 
display housing. 

Replacement Note: Replace 
the short mounting screws 
in the top-inside clutch 
threadings. The top-outside 
threadings are used to mount 
the bezel. 



^IMI^ 



\~fi?\ Take Apart 



Clutches/Display Housing - 46 



— Display Housing 



Shield 




Replacement Note: To avoid 
pinching the inverter cable, 
make sure it routes as 
illustrated. 

8 Remove the display 
housing and EMI shield 
from the case. 



<<■► 



\~fi?\ Take Apart 



Display - 47 



Display 




Display 



Before you begin, remove 
the following: 

• Main battery 

• Display bezel 

Caution: The PowerBook 
1 50 contains CMOS devices 
that are very susceptible to 
ESD damage. Review the ESD 
precautions in Bulletins/ 
Safety. 



^IMI^ 



\~fi?\ Take Apart 



Display - 48 




Caution: The display cable 
is fragile and should be 
handled with care. 

1 Cover the keyboard with 
a clean cloth or sheet of 
paper. 

2 Using a T-8 torx driver, 
remove the four display 
mounting screws. 

3 Remove the display 
from the housing and 
EMI shield. 

4 Place the display face- 
down on the keyboard. 



^IMI^ 



\~fi?\ Take Apart 



Display - 49 




5 Using a small flat-blade 
screwdriver, pry up 
and disconnect the 
display cable. 



^IMI^ 



\~fi?\ Take Apart 



Display - 50 




Backlight 
Cable 



6 Disconnect the inverter 
cable from the display 
backlight cable. 

7 Remove the display. 

Replacement Note: To avoid 
pinching the inverter cable, 
make sure it routes as 
illustrated. 



<<■► 



\~fi?\ Take Apart 



Display Cable ,..■ 



CT\ 






U- 



Display Cable - 51 



Display Cable 

Before you begin, remove 
the following: 

• Main battery 

• Top case 

• Inverter board 

• Interconnect board 

• Display bezel 

• Display 

Caution: The PowerBook 
1 50 contains CMOS devices 
that are very susceptible to 
ESD damage. Review the ESD 
precautions in Bulletins/ 
Safety. 



^IMI^ 



\~fi?\ Take Apart 



Display Cable - 52 




Caution: The display cable 
is fragile and should be 
handled with care. 

1 Pry the display cable 
ferrite bead from the 
case. 



^IMI^ 



\~fi?\ Take Apart 



Display Cable - 53 




Display 
Cable 



2 Pull off the center and 
left clutch covers. 

3 Using a T-8 torx driver, 
remove the three 
mounting screws from 
the left clutch. 

4 Remove the clutch from 
the display housing. 

Replacement Note: Replace 
the short mounting screw in 
the top-inside clutch 
threading. The top-outside 
threading is used to mount 
the bezel. 

5 Remove the display cable 
from the case. 



<<■► 



\~fi?\ Take Apart 



Inverter Cable - 54 



Display Housing 



Inverter Cable 



7 



Inverter Cable 



Before you begin, remove 
the following: 

• Main battery 

• Top case 

• Inverter board 

• Display bezel 

Caution: The PowerBook 
1 50 contains CMOS devices 
that are very susceptible to 
ESD damage. Review the ESD 
precautions in Bulletins/ 
Safety. 



^IMI^ 



\~fi?\ Take Apart 



Inverter Cable - 55 




1 Pull off the center and 
right clutch covers. 

2 Using a T-8 torx driver, 
remove the three 
mounting screws from 
the right clutch. 

3 Remove the clutch from 
the display housing. 

Replacement Note: Replace 
the short mounting screw in 
the top-inside clutch 
threading. The top-outside 
threading is used to mount 
the bezel. 



^IMI^ 



\~fi?\ Take Apart 



Inverter Cable - 56 



Backlight Cable 
Inverter Cable 




Replacement Note: To avoid 
pinching the inverter cable, 
make sure it routes as 
illustrated. 

4 Fold back the right edge 
of the display EMI shield 
and disconnect the 
inverter cable from the 
backlight cable. 

5 Remove the inverter 
cable from the case. 



<<■► 




Service Source 



Upgrades 



PowerBook 150 



<** 



\-@f{ Upgrades 



Modem Card - 1 




Modem Card 



Modem Card 

Before you begin, remove 
the following: 

• Main battery 

• Top case 

Caution: The PowerBook 
1 50 contains CMOS devices 
that are very susceptible to 
ESD damage. Review the ESD 
precautions in Bulletins/ 
Safety. 



^IMI^ 



I -fifi Upgrades 



Modem Card - 2 




Note: The modem card is an 
option for the PowerBook 
150. 

1 Pinch the release tabs 
and push out the modem 
port cover. 



^IMI^ 



I -fifi Upgrades 



Modem Card - 3 



Modem 

Modem Card Connector 




2 Connect the modem card 
connector to connector 
J4 on the logic board. 

3 Install the two mounting 
screws. 



<<■► 



\-@F\ Upgrades 




RAM Expansion Card 



RAM Expansion Card - 4 



RAM Expansion 
Card 

Before you begin, remove 
the following: 

• Main battery 

• Top case 

Caution: The PowerBook 
1 50 contains CMOS devices 
that are very susceptible to 
ESD damage. Review the ESD 
precautions in Bulletins/ 
Safety. 



^IMI^ 



\-@F\ Upgrades 



RAM Expansion Card - 5 



Expansion Card Brace 




^ RAM Expansion Card 



^_ Adapter 



Caution: Handle the RAM 
expansion card by the edges 
only. Do not touch any 
components on the card. 

This procedure explains how 
to install the RAM 
expansion card kit. The kit 
is an option for the 
PowerBook 1 50 and includes 
a RAM expansion card, 
adapter, brace, and 
mounting screw. 

1 Caution: Be careful not 
to flex the RAM card 
when inserting it into 
the adapter. Connect the 
card to the adapter by 



\-@F\ Upgrades 



RAM Expansion Card - 6 



Expansion Card Brace 




^ RAM Expansion Card 



^_ Adapter 



holding onto the white 
projections on the top of 
both cards and squeezing 
them together. 

Connect the RAM 
expansion card to the 
adapter. 

Note: Make sure the 
ridge on the underside of 
the brace fits between 
the rows of chips on the 
RAM card. 

Position the expansion 
card brace over the RAM 
card and snap it into 
place. 



^IMI^ 



\-@F\ Upgrades 



RAM Expansion Card - 7 




J7 Connector 

Brace Slot 



3 Insert the two legs of the 
expansion card brace 
into the two brace slots 
in the logic board. 

4 Caution: Be careful not 
to flex the RAM card or 
adapter when connecting 
the adapter to the logic 
board. 

Connect the adapter 
(with RAM card and 
brace attached) to 
connector J7 on the logic 
board. 

5 Install the mounting 
screw. 



^IMI^ 



\-@F\ Upgrades 



RAM Expansion Card - 8 



Adapter 




Logic Board 

Take-Apart 

Tool 



Note: To disconnect the 
adapter from the logic 
board, be sure to use the 
Apple logic board take-apart 
tool. 

Note: To verify that the 
upgrade is successful, check 
the Total Memory message 
(for systems with virtual 
memory switched off) or the 
Built-in Memory message 
(for systems with virtual 
memory switched on). The 
memory size should be 4 MB 
of soldered RAM plus the 
RAM on the expansion 
board. If the memory size is 



Ffift Upgrades RAM Expansion Card - 9 

incorrect, replace the RAM 
expansion card. If the 
memory size is still 
incorrect, send the 
computer to Apple. 



<<■► 



Service Source 




Additional Procedures 

PowerBook 150 



<** 



m 



Additional Procedures 



Battery Recharger - 1 



Battery 




Battery 
Recharger 



Battery Recharger 

No preliminary steps are 
required before you begin 
this procedure. 

1 Using the PowerBook 
power adapter, plug the 
battery recharger into a 
power outlet and insert 
the main battery into the 
recharger. 



^IMI^ 



I^ffj Additional Procedures Battery Recharger - 2 



2 Track the status of the 
battery. If the LED is 

• Yellow, the battery is 
charging. 

• Green, the battery is 
ready to use. 

• Off, the charger is 
unplugged, the 
battery is bad, the 
power adapter is 
defective, or the 
charger is defective. 



<<■► 



m 



Additional Procedures 



Battery Handling - 3 



Main Battery 




Battery Handling 

No preliminary steps are 
required before you begin 
this procedure. 

Note: The PowerBookl 50 
main battery is a nickel 
cadmium (NiCad) battery 
with a voltage of 5.65-7.5 
volts. Its longevity is 
estimated at 500 power 
cycles. To extend its 
longevity, follow the battery 
handling guidelines on the 
next page. 

A. Warning: The main 



^IMI^ 



\~ffli Additional Procedures Battery Handling - 4 



battery contains toxic 
materials. Review battery 
handling and disposal 
instructions in Bulletins/ 
Safety. 

The following are guidelines 
for properly handling the 
NiCad battery: 

• Handle the battery 
carefully. Do not drop, 
puncture, disassemble, 
mutilate, or incinerate 
the battery. 

• Fully charge a 
replacement battery 
before using it; Apple 



\~ffli Additional Procedures Battery Handling - 5 



ships batteries in a 
partially-charged state. 
Do not leave the battery 
in the computer for 
longer than two weeks 
without plugging in the 
power adaptor. 
Completely discharge and 
recharge the battery once 
a month. 

Store the battery in the 
protective battery case. 
Do not short-circuit the 
battery terminals. 
Keep the battery in a 
cool, dark place. 



<<■► 



Additional Procedures 



Battery Verification - 6 



Main Battery 




Battery 
Verification 

Before you begin, remove 
the main battery. 

Note: The Control Strip on 
the PowerBook 1 50 desktop 
is a general indicator of the 
battery charge. Use a 
voltmeter to determine the 
actual charge. Refer to the 
procedure on the next page. 

A. Warning: The main 
battery is a NiCad battery 
that contains toxic 
materials. Review battery 



I "3?/ Additional Procedures 



Battery Verification - 7 




Positive Probe 



Negative Probe 



handling and disposal 
instructions in Bulletins/ 
Safety. 

Set a voltmeter to the 1 
volts DC scale and touch the 
positive and negative 
terminals of the battery 
with the positive and 
negative voltmeter probes. 
If the reading is not above 
5.7 volts, recharge (first) 
or replace the battery. 



<<■► 



I "3?/ Additional Procedures 



Adapter Verification - 8 




Negative 
Probe 






gQ IE* 




L Positive 
Probe 



Adapter 
Verification 

No preliminary steps are 
required before you begin 
this procedure. 

1 Plug in the AC adapter to 
a wall socket. 

2 Set a voltmeter to the 1 
volts DC scale. 

3 Touch the positive 
voltmeter probe to the 
inside of the adapter 
plug, and touch the 
negative voltmeter 
probe to the outside of 



Additional Procedures 



Adapter Verification - 9 



the adapter plug. If the 
reading is not 7.5-7.9 
volts, replace the 
adapter. 



<<■► 




Service Source 



Exploded View 



PowerBook 150 



<m* 



Exploded View 



Exploded View 

PowerBook 150 



922-0986 
Display Housing 



922-0987 
EMI Shield 



922-0983 
Display Cables 



815-1231 
End Clutch Cover 



699-0497 
Clutch Assembly 

815-1230 

Center 

Clutch Cover 

661-0190 

Interconnect 

Board 

922-1120 

Inverter 

Board 

805-0397 
Inverter Shield 



661-0712 
Keyboard 

815-0578 

Modem 

Port Cover 

661-1659 

DRAM 

Expansion Card 



661-0140 
Motherboard 



661-0143 
FSTN Display 

922-0988 
Display Bezel 




922-0985 

Motherboard 

Insulator 

815-1240 
Battery 
Door 
This is a generic representation of a product family. Configurations may vary. 



815-1248 

Brightness 

Actuator 

076-0468 
Elevation 
Foot Kit 

076-0567 

External 

Battery 

Recharger 

661-1515 

Trackball 

Assembly 



922-0982 
Floppy 
Drive 
Cable 

661-0061 

Floppy 

Drive 

922-0991 
Floppy 
Drive 
Bracket 

Hard 
Drive 



922-1123 
Hard 
Drive 
Bracket 

922-0981 
Hard 
Drive 
Cable 

922-0990 

Case 

Bottom 

922-1117 

Power 

Adapter 



<<■►